A6-sub A is built with Italian powersoft original imported DSP switching power supply 2-channel digital power amplifier. Powersoft class D technology is the industry benchmark because of its good quality, reliability, stability and attention to detail.The fixed frequency design of pulse width modulation ensures optimal performance and high predictability, and protects modules from the influence of intermodulation components.Shape factors and modular design provide maximum flexibility and extensibility for each application.Powerful and flexible signal processing tools allow users to adjust the performance of modules.The product features four storable presets, high performance, intuitive, flexible and easy to use programming features.Safety with multiple limiting, line, thermal protection.In terms of sound quality, full band sound, sound balance, clear sound quality, good performance of music, and A6 combination into a perfect active array system